SQL
2011-07-19 阅读 89
本文是关于SQL，尝试着翻译了下，不足之处望指点。
**SQL**
SQL，经常作为结构化查询语言被提及，作为计算机数据库说明语言，最初以relational algebra和tuple relational calculus为基础，设计用来在关系型数据库管理系统（RDBMS）中管理数据。它功能主要包含增、查、改、删，视图创建和修改，和数据存取控制。在Edgar F.Codd1970的论文“A Relational Model of Data for Large Shared Data Banks”的关系模式中，SQL是早期的商业语言之一。尽管没有坚持Codd的关系模式，但SQL是现在应用最广泛的数据库语言。
原文：
**SQL**
SQL ，often referred to as Structured Query Language, is a database computer declarative language designed for managing data in relational database management systems (RDBMS), and originally based upon relational algebra and tuple relational calculus. Its scope includes data insert, query, update and delete, schema creation and modification, and data access control. SQL was one of the first commercial languages for Edgar F. Codd's relational model, as described in his influential 1970 paper, "A Relational Model of Data for Large Shared Data Banks". Despite not adhering to the relational model as described by Codd, it became the most widely used database language.
SQL
更新于 2023年03月28日
